Hard worker who foolishly accepted equine present? (6)
I believe the answer is:
trojan
'hard worker' is the definition.
(I've seen this before)
I cannot understand how the rest of the clue works.
Can you help me to learn more?
(Other definitions for trojan that I've seen before include "Computer threat" , "Proverbially hard worker" , "Work like a . . . . . ., with great energy and endurance - ask Helen" , "Native of Troy" , "Paris, say" .)